“…In the second report, Mazzitelli et al 16 described two cases: a 74-year-old man treated with LMWH at a dosage of 4000 IU twice a day for atrial fibrillation (AF) who died of severe anemia resulting from IPH, with a worsening prolongation of PT and PTT during hospitalization, and a 56-year-old man with stroke and renal failure also treated with LMWH 4000 twice a day for AF, with a normal coagulation pattern at the time of admission, and onset of IPH after 27 days: at the time of the diagnosis of hemorrhage, only PT was moderately increased and an unspecified thrombocytopenia was noted. There are also other reports in the literature concerning idiopathic IPH in anticoagulated patients even if not affected by COVID-19: Apostolopoulos et al 17 described a man treated with warfarin who developed extensive IPH with femoral nerve palsy. A similar case is reported by Watanabe et al 18 where a patient, also on warfarin treatment, developed a rhabdomyolysis caused by bilateral IPH.…”